172P/Yeung
Orbital Elements
The following orbital elements are taken from MPC 54825:172P/Yeung Epoch 2008 Oct. 21.0 TT = JDT 2454760.5 T 2008 Oct. 12.8362 TT MPC q 2.240466 (2000.0) P Q n 0.1498375 Peri. 178.9977 -0.7759726 +0.6175212 a 3.510663 Node 40.0884 -0.5800975 -0.6186018 e 0.361811 Incl. 11.5180 -0.2476961 -0.4857977 P 6.58 From 110 observations 1993-2003, mean residual 0".5.Elements are also available for the current standard epoch:
172P/Yeung Epoch 2009 June 18.0 TT = JDT 2455000.5 T 2008 Oct. 13.0395 TT MPC q 2.240841 (2000.0) P Q n 0.1496687 Peri. 179.0772 -0.7752892 +0.6183929 a 3.513300 Node 40.0726 -0.5807590 -0.6179730 e 0.362183 Incl. 11.5158 -0.2482856 -0.4854890 P 6.59An explanation of the orbital elements is available.
These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Ephemeris
The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.Personalized ephemerides for this (and other) objects may be generated using the Minor Planet & Comet Ephemeris Service.
Recent magnitude estimates for this comet (as reported to the ICQ) may be available.
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2WARNING! 2009 06 08 20 52.46 -33 13.0 1.972 2.729 129.2 16.7 18.8 20.5 2009 06 13 20 51.77 -33 42.8 1.943 2.746 133.9 15.5 18.8 20.5 2009 06 18 20 50.34 -34 13.5 1.918 2.763 138.6 14.1 18.8 20.4 2009 06 23 20 48.20 -34 44.6 1.899 2.780 143.2 12.6 18.8 20.4 2009 06 28 20 45.39 -35 15.1 1.884 2.797 147.8 11.2 18.8 20.3 2009 07 03 20 41.97 -35 44.2 1.875 2.815 152.3 9.7 18.9 20.2 2009 07 08 20 38.04 -36 11.1 1.871 2.832 156.3 8.3 18.9 20.2 2009 07 13 20 33.71 -36 35.1 1.874 2.850 159.7 7.1 18.9 20.2 2009 07 18 20 29.09 -36 55.4 1.883 2.867 161.9 6.3 18.9 20.1 2009 07 23 20 24.32 -37 11.4 1.899 2.885 162.6 6.0 19.0 20.2 2009 07 28 20 19.55 -37 22.9 1.921 2.902 161.5 6.4 19.0 20.2 2009 08 02 20 14.94 -37 29.5 1.950 2.920 159.0 7.2 19.1 20.3 2009 08 07 20 10.61 -37 31.4 1.985 2.938 155.5 8.2 19.2 20.4 2009 08 12 20 06.67 -37 28.7 2.026 2.955 151.4 9.5 19.2 20.5 2009 08 17 20 03.22 -37 21.8 2.073 2.973 147.0 10.7 19.3 20.6 2009 08 22 20 00.34 -37 10.9 2.125 2.991 142.4 11.9 19.4 20.7 2009 08 27 19 58.08 -36 56.6 2.182 3.009 137.8 13.0 19.5 20.8 2009 09 01 19 56.47 -36 39.4 2.245 3.027 133.2 14.1 19.6 21.0 2009 09 06 19 55.53 -36 19.6 2.311 3.044 128.7 15.0 19.7 21.1 2009 09 11 19 55.24 -35 57.8 2.381 3.062 124.2 15.8 19.7 21.2 2009 09 16 19 55.58 -35 34.2 2.455 3.080 119.7 16.5 19.8 21.3 2009 09 21 19 56.54 -35 09.2 2.532 3.098 115.4 17.0 19.9 21.4 2009 09 26 19 58.09 -34 42.9 2.611 3.116 111.1 17.5 20.0 21.5 2009 10 01 20 00.18 -34 15.6 2.693 3.134 106.9 17.8 20.1 21.6 2009 10 06 20 02.78 -33 47.5 2.776 3.151 102.7 18.0 20.2 21.6 2009 10 11 20 05.84 -33 18.6 2.861 3.169 98.7 18.1 20.3 21.7 2009 10 16 20 09.33 -32 49.0 2.947 3.187 94.7 18.2 20.4 21.8 2009 10 21 20 13.21 -32 18.8 3.033 3.205 90.7 18.1 20.5 21.9 2009 10 26 20 17.44 -31 47.9 3.120 3.222 86.8 17.9 20.6 21.9 2009 10 31 20 22.00 -31 16.5 3.207 3.240 83.0 17.7 20.6 22.0 2009 11 05 20 26.83 -30 44.6 3.294 3.257 79.2 17.4 20.7 22.1 2009 11 10 20 31.92 -30 12.1 3.380 3.275 75.5 17.0 20.8 22.1 2009 11 15 20 37.23 -29 39.0 3.465 3.293 71.8 16.6 20.9 22.2 2009 11 20 20 42.74 -29 05.3 3.548 3.310 68.1 16.1 20.9 22.2 2009 11 25 20 48.43 -28 31.1 3.631 3.327 64.5 15.5 21.0 22.3 2009 11 30 20 54.27 -27 56.4 3.711 3.345 60.9 14.9 21.1 22.3 2009 12 05 21 00.23 -27 21.1 3.789 3.362 57.4 14.3 21.2 22.3 2009 12 10 21 06.30 -26 45.3 3.865 3.379 53.8 13.6 21.2 22.4 2009 12 15 21 12.47 -26 09.0 3.939 3.397 50.3 12.9 21.3 22.4 2009 12 20 21 18.71 -25 32.2 4.010 3.414 46.9 12.1 21.3 22.4 2009 12 25 21 25.00 -24 54.9 4.078 3.431 43.4 11.4 21.4 22.4 2009 12 30 21 31.35 -24 17.3 4.143 3.448 40.0 10.6 21.5 22.4 2010 01 04 21 37.72 -23 39.3 4.204 3.465 36.6 9.7 21.5 22.5 2010 01 09 21 44.11 -23 01.0 4.263 3.481 33.2 8.9 21.6 22.5 2010 01 14 21 50.51 -22 22.3 4.317 3.498 29.8 8.0 21.6 22.5 2010 01 19 21 56.91 -21 43.5 4.368 3.515 26.5 7.2 21.7 22.5 2010 01 24 22 03.30 -21 04.5 4.414 3.532 23.3 6.3 21.7 22.5 2010 01 29 22 09.67 -20 25.3 4.457 3.548 20.1 5.5 21.7 22.4 2010 02 03 22 16.00 -19 46.2 4.495 3.565 17.0 4.6 21.8 22.4 2010 02 08 22 22.30 -19 07.1 4.529 3.581 14.1 3.9 21.8 22.4 2010 02 13 22 28.56 -18 28.0 4.559 3.597 11.5 3.1 21.9 22.4 2010 02 18 22 34.77 -17 49.1 4.585 3.614 9.4 2.6 21.9 22.4 2010 02 23 22 40.92 -17 10.4 4.606 3.630 8.3 2.2 21.9 22.4 2010 02 28 22 47.00 -16 32.1 4.623 3.646 8.5 2.3 21.9 22.4 2010 03 05 22 53.01 -15 54.2 4.635 3.662 9.9 2.7 22.0 22.4 2010 03 10 22 58.95 -15 16.7 4.642 3.678 12.2 3.3 22.0 22.5 2010 03 15 23 04.81 -14 39.7 4.646 3.693 14.9 4.0 22.0 22.5 2010 03 20 23 10.57 -14 03.4 4.644 3.709 17.9 4.7 22.0 22.6 2010 03 25 23 16.24 -13 27.7 4.639 3.725 21.0 5.5 22.0 22.6 2010 03 30 23 21.80 -12 52.9 4.628 3.740 24.2 6.3 22.1 22.7 2010 04 04 23 27.26 -12 18.9 4.614 3.756 27.5 7.1 22.1 22.7 2010 04 09 23 32.59 -11 45.8 4.596 3.771 30.8 7.8 22.1 22.7 2010 04 14 23 37.81 -11 13.7 4.573 3.786 34.2 8.6 22.1 22.8 2010 04 19 23 42.89 -10 42.8 4.546 3.801 37.7 9.3 22.1 22.8 2010 04 24 23 47.84 -10 13.1 4.516 3.816 41.1 10.0 22.1 22.8 2010 04 29 23 52.63 -09 44.6 4.482 3.831 44.6 10.6 22.1 22.8 2010 05 04 23 57.26 -09 17.5 4.444 3.846 48.2 11.3 22.1 22.9 2010 05 09 00 01.73 -08 51.8 4.403 3.861 51.8 11.9 22.1 22.9 2010 05 14 00 06.02 -08 27.7 4.359 3.875 55.4 12.4 22.1 22.9 2010 05 19 00 10.11 -08 05.2 4.312 3.890 59.1 12.9 22.1 22.9 2010 05 24 00 14.00 -07 44.4 4.262 3.904 62.8 13.3 22.1 22.9 2010 05 29 00 17.67 -07 25.4 4.209 3.919 66.6 13.7 22.1 22.9 2010 06 03 00 21.11 -07 08.2 4.155 3.933 70.4 14.1 22.0 22.9 2010 06 08 00 24.31 -06 53.0 4.098 3.947 74.3 14.3 22.0 22.9 2010 06 13 00 27.24 -06 39.8 4.040 3.961 78.3 14.5 22.0 22.8 2010 06 18 00 29.90 -06 28.8 3.981 3.975 82.3 14.7 22.0 22.8 2010 06 23 00 32.26 -06 19.9 3.920 3.989 86.5 14.7 22.0 22.8 2010 06 28 00 34.32 -06 13.3 3.860 4.003 90.7 14.7 22.0 22.8 2010 07 03 00 36.04 -06 08.9 3.799 4.016 94.9 14.6 21.9 22.7 2010 07 08 00 37.43 -06 06.8 3.738 4.030 99.3 14.4 21.9 22.7 2010 07 13 00 38.45 -06 07.1 3.678 4.043 103.8 14.1 21.9 22.7This comet gets close to the sun during the period covered in the ephemeris below. Observers are warned to be wary of observing comets near the sun. NEVER point any kind of optical instrument at the sun--instant blindness will be the probable result.
